Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8991471 | Methods of forming earth-boring tools | Eric C. Sullivan, Tu Tien Trinh | 2015-03-31 |
| 8807242 | Apparatuses and methods for determining temperature data of a component of an earth-boring drilling tool | — | 2014-08-19 |
| 8777088 | Methods for attaching cutting elements to earth-boring tools using tapered surfaces | Tu Tien Trinh, Eric C. Sullivan | 2014-07-15 |
| 8695728 | Formation evaluation using a bit-based active radiation source and a gamma ray detector | Tu Tien Trinh, Eric C. Sullivan, David A. Curry, Feyzi Inanc, Yi Liu | 2014-04-15 |
| 8573327 | Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors | Tu Tien Trinh, Eric C. Sullivan | 2013-11-05 |
| 8162077 | Drill bit with weight and torque sensors | Keith Glasgow, Sorin Gabriel Teodorescu, Eric C. Sullivan, Tu Tien Trinh, Daryl L. Pritchard | 2012-04-24 |